US6367368B1 - Variable displacement compressor having piston anti-rotation structure - Google Patents

Variable displacement compressor having piston anti-rotation structure Download PDF

Info

Publication number
US6367368B1
US6367368B1 US09/474,728 US47472899A US6367368B1 US 6367368 B1 US6367368 B1 US 6367368B1 US 47472899 A US47472899 A US 47472899A US 6367368 B1 US6367368 B1 US 6367368B1
Authority
US
United States
Prior art keywords
crankcase
piston
swash plate
rotation structure
cylinder block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US09/474,728
Inventor
Peter E. Ganster
Hew Nam Ahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanon Systems Corp
Ford Motor Co
Original Assignee
Visteon Global Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Visteon Global Technologies Inc filed Critical Visteon Global Technologies Inc
Priority to US09/474,728 priority Critical patent/US6367368B1/en
Assigned to FORD GLOBAL TECHNOLOGIES, INC. reassignment FORD GLOBAL TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AHN, HEW NAM, GANSTER, PETER E.
Assigned to VISTEON GLOBAL TECHNOLOGIES, INC. reassignment VISTEON GLOBAL TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FORD MOTOR COMPANY
Priority to EP00309729A priority patent/EP1113171A3/en
Priority to JP2000402528A priority patent/JP2001221156A/en
Priority to KR1020000085306A priority patent/KR100717329B1/en
Application granted granted Critical
Publication of US6367368B1 publication Critical patent/US6367368B1/en
Assigned to FORD MOTOR COMPANY reassignment FORD MOTOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FORD GLOBAL TECHNOLOGIES, INC. (NOW FORD GLOBAL TECHNOLOGIES, LLC)
Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: VISTEON GLOBAL TECHNOLOGIES, INC.
Assigned to JPMORGAN CHASE BANK reassignment JPMORGAN CHASE BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VISTEON GLOBAL TECHNOLOGIES, INC.
Assigned to WILMINGTON TRUST FSB, AS ADMINISTRATIVE AGENT reassignment WILMINGTON TRUST FSB, AS ADMINISTRATIVE AGENT ASSIGNMENT OF SECURITY INTEREST IN PATENTS Assignors: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Assigned to THE BANK OF NEW YORK MELLON, AS ADMINISTRATIVE AGENT reassignment THE BANK OF NEW YORK MELLON, AS ADMINISTRATIVE AGENT ASSIGNMENT OF PATENT SECURITY INTEREST Assignors: JPMORGAN CHASE BANK, N.A., A NATIONAL BANKING ASSOCIATION
Assigned to VISTEON GLOBAL TECHNOLOGIES, INC. reassignment VISTEON GLOBAL TECHNOLOGIES, INC. RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS RECORDED AT REEL 022974 FRAME 0057 Assignors: THE BANK OF NEW YORK MELLON
Assigned to VISTEON GLOBAL TECHNOLOGIES, INC. reassignment VISTEON GLOBAL TECHNOLOGIES, INC. RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS RECORDED AT REEL 022575 FRAME 0186 Assignors: WILMINGTON TRUST FSB, AS ADMINISTRATIVE AGENT
Assigned to MORGAN STANLEY SENIOR FUNDING, INC., AS AGENT reassignment MORGAN STANLEY SENIOR FUNDING, INC., AS AGENT SECURITY AGREEMENT (REVOLVER) Assignors: VC AVIATION SERVICES, LLC, VISTEON CORPORATION, VISTEON ELECTRONICS CORPORATION, VISTEON EUROPEAN HOLDINGS, INC., VISTEON GLOBAL TECHNOLOGIES, INC., VISTEON GLOBAL TREASURY, INC., VISTEON INTERNATIONAL BUSINESS DEVELOPMENT, INC., VISTEON INTERNATIONAL HOLDINGS, INC., VISTEON SYSTEMS, LLC
Assigned to MORGAN STANLEY SENIOR FUNDING, INC., AS AGENT reassignment MORGAN STANLEY SENIOR FUNDING, INC., AS AGENT SECURITY AGREEMENT Assignors: VC AVIATION SERVICES, LLC, VISTEON CORPORATION, VISTEON ELECTRONICS CORPORATION, VISTEON EUROPEAN HOLDING, INC., VISTEON GLOBAL TECHNOLOGIES, INC., VISTEON GLOBAL TREASURY, INC., VISTEON INTERNATIONAL BUSINESS DEVELOPMENT, INC., VISTEON INTERNATIONAL HOLDINGS, INC., VISTEON SYSTEMS, LLC
Assigned to VISTEON EUROPEAN HOLDING, INC., VISTEON INTERNATIONAL HOLDINGS, INC., VISTEON ELECTRONICS CORPORATION, VISTEON GLOBAL TREASURY, INC., VISTEON SYSTEMS, LLC, VISTEON CORPORATION, VC AVIATION SERVICES, LLC, VISTEON INTERNATIONAL BUSINESS DEVELOPMENT, INC., VISTEON GLOBAL TECHNOLOGIES, INC. reassignment VISTEON EUROPEAN HOLDING, INC. RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317 Assignors: MORGAN STANLEY SENIOR FUNDING, INC.
Assigned to HALLA VISTEON CLIMATE CONTROL CORPORATION reassignment HALLA VISTEON CLIMATE CONTROL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VISTEON GLOBAL TECHNOLOGIES, INC.
Assigned to VISTEON EUROPEAN HOLDINGS, INC., VISTEON INTERNATIONAL BUSINESS DEVELOPMENT, INC., VISTEON GLOBAL TREASURY, INC., VISTEON GLOBAL TECHNOLOGIES, INC., VISTEON CORPORATION, VISTEON INTERNATIONAL HOLDINGS, INC., VC AVIATION SERVICES, LLC, VISTEON ELECTRONICS CORPORATION, VISTEON SYSTEMS, LLC reassignment VISTEON EUROPEAN HOLDINGS, INC. RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Assignors: MORGAN STANLEY SENIOR FUNDING, INC.
Assigned to HANON SYSTEMS reassignment HANON SYSTEMS CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HALLA VISTEON CLIMATE CONTROL CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons

Definitions

  • the present invention relates to a variable displacement swash plate type compressor adapted for use in an air conditioning system for a vehicle, and more particularly to an anti-rotation structure for pistons disposed in cylinders within the compressor to prevent rotation of the pistons in the cylinders.
  • Variable displacement swash plate type compressors typically include a cylinder block provided with a number of cylinders, a piston disposed in each of the cylinders of the cylinder block, a cylindrical crankcase sealingly disposed on the end of the cylinder block, a rotatably supported drive shaft, and a swash plate.
  • the swash plate is adapted to be rotated by the drive shaft.
  • the swash plate is operatively connected to a bridge portion of the pistons through shoes. Rotation of the swash plate is effective to reciprocatively drive the pistons. As the swash plate is rotated, frictional forces act laterally on the shoes, which cause the pistons to rotate within the cylinders. Rotation of the pistons must be restricted to prevent contact between the swash plate and the bridge portions of the pistons.
  • Prior art anti-rotation structures include a winged structure attached to the piston.
  • the ends of the winged structure are designed to contact the inner surface of the crankcase to limit rotation of the piston.
  • the entire winged structure is disposed to extend radially outwardly of the longitudinal axis of the piston from the peripheral surface of the piston. In order to accommodate the winged structure, the diameter of the crankcase must be large.
  • An object of the invention is to produce a swash plate type compressor having an anti-rotation structure that can be accommodated in a crankcase of a size smaller than the prior art structures.
  • Another object of the invention is to produce a swash plate type compressor that can be manufactured more economically than the prior art structures, and provide smooth operation and a long service life.
  • variable capacity swash plate type compressor comprising a cylinder block having a plurality of cylinders arranged radially and circumferentially therein; a crankcase mounted adjacent the cylinder block and cooperating with the cylinder block to define a sealed crank chamber, the crankcase having a central axis and an inner wall with spaced apart longitudinally extending parallel bearing surfaces formed therein and extending parallel to the central axis of the crankcase, the bearing surfaces defining longitudinal recessed portions therebetween; a drive shaft rotatably supported by the crankcase and the cylinder block in the crank chamber; a swash plate slidably and rotatably disposed on the drive shaft; a plurality of pistons reciprocatively disposed in each of the cylinders of the cylinder block, each piston having a longitudinal axis and an outer surface, means for achieving a hinged connection between the swash plate and each of the pistons so that when the drive shaft is rotated, each piston reciproc
  • FIG. 1 is a cross sectional view of a variable capacity swash plate type compressor
  • FIG. 2 is a perspective view of a piston from the compressor illustrated in FIG. 1 incorporating the features of the invention.
  • FIG. 3 is a partial fragmentary cross-sectional view of the compressor showing one piston disposed in the crankcase with contact between the anti-rotation structure and bearing surfaces along the inner wall of the crankcase and a gap between the outer wall of the piston and the inner wall of the crankcase taken along line 3 — 3 of FIG. 1 .
  • FIG.4 is a view similar to FIG. 3 wherein pistons have been removed from the crankcase to show employ cylinders.
  • a variable capacity swash plate type compressor is indicated generally at 10 in FIG. 1 .
  • the compressor 10 includes a cylinder block 12 having a plurality of cylinders 14 formed therein.
  • a head 16 is disposed adjacent one end of the cylinder block 12 and sealingly closes the end of the cylinder block 12 .
  • a crankcase 18 is sealingly disposed at the other end of the cylinder block 12 .
  • the crankcase 18 and cylinder block 12 cooperate to form an airtight crank chamber 20 .
  • Longitudinal bearing surfaces 22 are disposed along the inner wall of the crankcase 18 , as illustrated in FIGS. 1 and 3.
  • the bearing surfaces 22 are concave with the curvature concentric with a central axis of the crankcase 18 .
  • Recessed portions 24 are formed in the crankcase 18 between the bearing surfaces 22 . Each recessed portion 24 is aligned with one of the cylinders 14 .
  • a drive shaft 26 is centrally disposed in and arranged to extend through the crankcase 18 to the cylinder block 12 .
  • the drive shaft 26 is rotatably supported in the crankcase 18 .
  • a rotor 28 is fixedly mounted on an outer surface of the drive shaft 26 adjacent one end of the crankcase 18 within the crank chamber 20 .
  • An arm 30 extends laterally from a surface of the rotor 28 opposite a surface of the rotor 28 that is adjacent the end of the crankcase 18 .
  • a slot 32 is formed in the distal end of the arm 30 .
  • a pin 34 has one end slidingly disposed in the slot 32 of the arm 30 of the rotor 28 .
  • a swash plate assembly is formed to include a hub 36 and an annular plate 38 .
  • the hub 36 includes an arm 40 that extends upwardly and laterally from the surface of the hub 36 .
  • the distal end of the arm 40 forms a hole 42 .
  • the pin 34 with one end slidingly disposed in the slot 32 of the arm 30 of the rotor 28 , has the other end fixedly disposed in the hole 42 of the arm 40 of the hub 36 .
  • a hollow annular extension 44 depends from the opposite surface of the hub 36 as the arm 40 .
  • Two pins 46 , 48 are disposed in the hub 36 with a portion of the outer surface of the pins 46 , 48 exposed in the aperture of the annular extension 44 of the hub 36 .
  • the annular plate 38 has a centrally disposed aperture.
  • the annular extension 44 of the hub 36 extends through the aperture of the annular plate 38 .
  • the drive shaft 26 is inserted in the aperture formed by the hub 36 of the swash plate assembly.
  • a spring 50 is disposed to extend around the outer surface of the drive shaft 26 .
  • One end of the spring 50 abuts the rotor 28 .
  • the opposite end of the spring 50 abuts the hub 36 of the swash plate assembly.
  • a plurality of pistons 52 is slidably disposed in the cylinders 14 of the cylinder block 12 .
  • Each piston 52 includes a head 54 , a hollow middle portion 56 , a bridge portion 58 , and an anti-rotation structure 60 .
  • the middle portion 56 terminates in the bridge portion 58 .
  • a pair of concave shoe pockets 66 are formed in the bridge portion 58 of each piston 52 for rotatably supporting a spherical shoe 68 , as illustrated in FIG. 1 .
  • the anti-rotation structure 60 includes shoulder portions 70 , 72 .
  • the shoulder portions 70 , 72 are symmetrical and mirror images of each other.
  • the shoulder portions 70 , 72 extend radially outwardly with respect to the longitudinal axis of the piston 52 to a point beyond the outer surface (diameter) of the piston 52 .
  • An outer surface 73 of the anti-rotation structure 60 extending between the shoulder portions 70 , 72 , is curved and concentric with a facing inner wall of the crankcase 18 .
  • a radius R 1 measured from a longitudinal axis of the drive shaft 26 to the bearing surface 22 of the cylinder block 12 is approximately equal to a radius R 2 measured from a point X offset from the longitudinal axis of the drive shaft 26 to the outer surface 73 of the shoulder portions 70 , 72 .
  • Point X is offset from the longitudinal axis by a distance Y.
  • a distance H measured from a point Z to an approximate mid-point of the outer surface 73 is less than a radius R 3 measured from point Z to an outbound surface of cylinder 14 .
  • a mid-point of the outer surface 73 is radially inbound of the outer diameter of the piston 52 .
  • the radius R 1 is less than a radius R 4 measured from the longitudinal axis of the drive shaft 26 to an outbound surface of the cylinder 14 .
  • the diameter of the cylinder block 12 can be reduced by approximately twice the difference D between R 3 and R 1 . This reduction results in a compact compressor 10 .
  • the operation of the compressor 10 is accomplished by rotation of the drive shaft 26 by an auxiliary drive means (not shown), which may typically be the internal combustion engine of a vehicle.
  • Rotation of the drive shaft 26 causes the rotor 28 to correspondingly rotate with the drive shaft 26 .
  • the swash plate assembly is connected to the rotor 28 by a hinge mechanism formed by the pin 34 slidingly disposed in the slot 32 of the arm 30 of the rotor 28 and fixedly disposed in the hole 42 of the arm 40 of the hub 36 .
  • the connection made by the pin 34 between the swash plate assembly and the rotor 28 causes the swash plate assembly to rotate.
  • the swash plate assembly is disposed at an inclination angle.
  • a sliding engagement between the annular plate 38 and the shoe 68 causes a reciprocation of the pistons 52 due to the inclination angle of the swash plate assembly.
  • the capacity of the compressor 10 can be changed by changing the inclination angle of the swash plate assembly and thereby changing the length of the stroke for the pistons 52 .
  • the inclination angle of the swash plate assembly is changed by a control valve means (not shown) used to control the backpressure in the crank chamber 20 .
  • a backpressure acting on the respective pistons 52 is decreased, and therefore, the angle of inclination of the swash plate assembly is increased.
  • the pin 34 connecting the rotor 28 and the swash plate assembly is moved slidably within the slot 32 .
  • the swash plate assembly is moved against the force of the spring 50 . Therefore, the angle of inclination of the swash plate assembly is increased, and as a result, the length of the stroke of the respective pistons 52 is increased.
  • the sliding engagement between the annular plate 38 and the shoes 68 of the pistons 52 causes a lateral force to be exerted on the pistons 52 .
  • the depth the annular plate 38 is inserted into the shoe 68 changes, resulting in a change in the point where the lateral force is exerted on the piston 52 .
  • the lateral force tends to cause the piston 52 to rotate about its longitudinal axis. If permitted to rotate, the bridge portion 58 of the pistons 52 would contact the annular plate 38 of the swash plate assembly, thereby restricting rotation of the swash plate assembly and reducing the service life of the compressor 10 .
  • the recessed portions 24 of the crankcase 18 are curved to permit the outer surface of the pistons 52 to slide adjacent the inner wall of the crankcase 18 without contacting the inner wall of the crankcase 18 , thus providing smoother operation of the compressor 10 .
  • the recessed portions 24 of the crankcase 18 in cooperation with the bearing surfaces 22 permit the anti-rotation structure 60 to be located radially inward of the outer surface of the pistons 52 . Locating the anti-rotation structure 60 in this manner permits a reduction in the overall diameter of the crankcase 18 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

A variable capacity swash plate type compressor (10) incorporates an anti-rotation structure (60) formed on each piston (52). Each piston (52) is disposed in a cylinder (14) of a cylinder block (12). The cylinder block (12) is disposed in a crankcase (18). The anti-rotation structure (60) restricts rotation of a piston (52) within a cylinder (14) by cooperating with an inner surface of the crankcase (18).

Description

FIELD OF THE INVENTION
The present invention relates to a variable displacement swash plate type compressor adapted for use in an air conditioning system for a vehicle, and more particularly to an anti-rotation structure for pistons disposed in cylinders within the compressor to prevent rotation of the pistons in the cylinders.
BACKGROUND OF THE INVENTION
Variable displacement swash plate type compressors typically include a cylinder block provided with a number of cylinders, a piston disposed in each of the cylinders of the cylinder block, a cylindrical crankcase sealingly disposed on the end of the cylinder block, a rotatably supported drive shaft, and a swash plate. The swash plate is adapted to be rotated by the drive shaft. In addition, the swash plate is operatively connected to a bridge portion of the pistons through shoes. Rotation of the swash plate is effective to reciprocatively drive the pistons. As the swash plate is rotated, frictional forces act laterally on the shoes, which cause the pistons to rotate within the cylinders. Rotation of the pistons must be restricted to prevent contact between the swash plate and the bridge portions of the pistons.
Prior art anti-rotation structures include a winged structure attached to the piston. The ends of the winged structure are designed to contact the inner surface of the crankcase to limit rotation of the piston. The entire winged structure is disposed to extend radially outwardly of the longitudinal axis of the piston from the peripheral surface of the piston. In order to accommodate the winged structure, the diameter of the crankcase must be large.
An object of the invention is to produce a swash plate type compressor having an anti-rotation structure that can be accommodated in a crankcase of a size smaller than the prior art structures.
Another object of the invention is to produce a swash plate type compressor that can be manufactured more economically than the prior art structures, and provide smooth operation and a long service life.
SUMMARY OF THE INVENTION
The above, as well as other objects of the invention, may be readily achieved by a variable capacity swash plate type compressor comprising a cylinder block having a plurality of cylinders arranged radially and circumferentially therein; a crankcase mounted adjacent the cylinder block and cooperating with the cylinder block to define a sealed crank chamber, the crankcase having a central axis and an inner wall with spaced apart longitudinally extending parallel bearing surfaces formed therein and extending parallel to the central axis of the crankcase, the bearing surfaces defining longitudinal recessed portions therebetween; a drive shaft rotatably supported by the crankcase and the cylinder block in the crank chamber; a swash plate slidably and rotatably disposed on the drive shaft; a plurality of pistons reciprocatively disposed in each of the cylinders of the cylinder block, each piston having a longitudinal axis and an outer surface, means for achieving a hinged connection between the swash plate and each of the pistons so that when the drive shaft is rotated, each piston reciprocates in the corresponding cylinder; and an anti-rotation structure disposed on each piston to reciprocatively move within the crankcase, the anti-rotation structure having two shoulder portions extending radially outward from the longitudinal axis of each piston to a point beyond the outer surface of each piston to slide adjacent the raised pads of the inner wall of the crankcase, the shoulder portions of the anti-rotation structure permitting the outer surface of each piston to reciprocatively move adjacent the recessed portions of the inner wall of the crankcase.
BRIEF DESCRIPTION OF THE DRAWINGS
The above, as well as other objects, features, and advantages of the present invention will be understood from the detailed description of the preferred embodiments of the present invention when considered in the light of the accompanying drawings, in which:
FIG. 1 is a cross sectional view of a variable capacity swash plate type compressor;
FIG. 2 is a perspective view of a piston from the compressor illustrated in FIG. 1 incorporating the features of the invention; and
FIG. 3 is a partial fragmentary cross-sectional view of the compressor showing one piston disposed in the crankcase with contact between the anti-rotation structure and bearing surfaces along the inner wall of the crankcase and a gap between the outer wall of the piston and the inner wall of the crankcase taken along line 3—3 of FIG. 1.
FIG.4 is a view similar to FIG. 3 wherein pistons have been removed from the crankcase to show employ cylinders.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
A variable capacity swash plate type compressor according to this invention is indicated generally at 10 in FIG. 1. The compressor 10 includes a cylinder block 12 having a plurality of cylinders 14 formed therein. A head 16 is disposed adjacent one end of the cylinder block 12 and sealingly closes the end of the cylinder block 12. A crankcase 18 is sealingly disposed at the other end of the cylinder block 12. The crankcase 18 and cylinder block 12 cooperate to form an airtight crank chamber 20. Longitudinal bearing surfaces 22 are disposed along the inner wall of the crankcase 18, as illustrated in FIGS. 1 and 3. The bearing surfaces 22 are concave with the curvature concentric with a central axis of the crankcase 18. Recessed portions 24 are formed in the crankcase 18 between the bearing surfaces 22. Each recessed portion 24 is aligned with one of the cylinders 14.
A drive shaft 26 is centrally disposed in and arranged to extend through the crankcase 18 to the cylinder block 12. The drive shaft 26 is rotatably supported in the crankcase 18.
A rotor 28 is fixedly mounted on an outer surface of the drive shaft 26 adjacent one end of the crankcase 18 within the crank chamber 20. An arm 30 extends laterally from a surface of the rotor 28 opposite a surface of the rotor 28 that is adjacent the end of the crankcase 18. A slot 32 is formed in the distal end of the arm 30. A pin 34 has one end slidingly disposed in the slot 32 of the arm 30 of the rotor 28.
A swash plate assembly is formed to include a hub 36 and an annular plate 38. The hub 36 includes an arm 40 that extends upwardly and laterally from the surface of the hub 36. The distal end of the arm 40 forms a hole 42. The pin 34, with one end slidingly disposed in the slot 32 of the arm 30 of the rotor 28, has the other end fixedly disposed in the hole 42 of the arm 40 of the hub 36.
A hollow annular extension 44 depends from the opposite surface of the hub 36 as the arm 40. Two pins 46, 48 are disposed in the hub 36 with a portion of the outer surface of the pins 46, 48 exposed in the aperture of the annular extension 44 of the hub 36.
The annular plate 38 has a centrally disposed aperture. The annular extension 44 of the hub 36 extends through the aperture of the annular plate 38. The drive shaft 26 is inserted in the aperture formed by the hub 36 of the swash plate assembly.
A spring 50 is disposed to extend around the outer surface of the drive shaft 26. One end of the spring 50 abuts the rotor 28. The opposite end of the spring 50 abuts the hub 36 of the swash plate assembly.
A plurality of pistons 52 is slidably disposed in the cylinders 14 of the cylinder block 12. Each piston 52 includes a head 54, a hollow middle portion 56, a bridge portion 58, and an anti-rotation structure 60. The middle portion 56 terminates in the bridge portion 58. A pair of concave shoe pockets 66 are formed in the bridge portion 58 of each piston 52 for rotatably supporting a spherical shoe 68, as illustrated in FIG. 1.
The anti-rotation structure 60 includes shoulder portions 70, 72. Preferably, the shoulder portions 70, 72 are symmetrical and mirror images of each other. The shoulder portions 70,72 extend radially outwardly with respect to the longitudinal axis of the piston 52 to a point beyond the outer surface (diameter) of the piston 52. An outer surface 73 of the anti-rotation structure 60, extending between the shoulder portions 70, 72, is curved and concentric with a facing inner wall of the crankcase 18.
As seen in FIG. 3, a radius R1 measured from a longitudinal axis of the drive shaft 26 to the bearing surface 22 of the cylinder block 12 is approximately equal to a radius R2 measured from a point X offset from the longitudinal axis of the drive shaft 26 to the outer surface 73 of the shoulder portions 70, 72. Point X is offset from the longitudinal axis by a distance Y.
A distance H measured from a point Z to an approximate mid-point of the outer surface 73 is less than a radius R3 measured from point Z to an outbound surface of cylinder 14. In other words, a mid-point of the outer surface 73 is radially inbound of the outer diameter of the piston 52.
As seen in FIG. 4, the radius R1 is less than a radius R4 measured from the longitudinal axis of the drive shaft 26 to an outbound surface of the cylinder 14.
The diameter of the cylinder block 12 can be reduced by approximately twice the difference D between R3 and R1. This reduction results in a compact compressor 10.
The operation of the compressor 10 is accomplished by rotation of the drive shaft 26 by an auxiliary drive means (not shown), which may typically be the internal combustion engine of a vehicle. Rotation of the drive shaft 26 causes the rotor 28 to correspondingly rotate with the drive shaft 26. The swash plate assembly is connected to the rotor 28 by a hinge mechanism formed by the pin 34 slidingly disposed in the slot 32 of the arm 30 of the rotor 28 and fixedly disposed in the hole 42 of the arm 40 of the hub 36. As the rotor 28 rotates, the connection made by the pin 34 between the swash plate assembly and the rotor 28 causes the swash plate assembly to rotate. During rotation, the swash plate assembly is disposed at an inclination angle. A sliding engagement between the annular plate 38 and the shoe 68 causes a reciprocation of the pistons 52 due to the inclination angle of the swash plate assembly.
The capacity of the compressor 10 can be changed by changing the inclination angle of the swash plate assembly and thereby changing the length of the stroke for the pistons 52. The inclination angle of the swash plate assembly is changed by a control valve means (not shown) used to control the backpressure in the crank chamber 20. When the pressure level in the crank chamber 20 is lowered, a backpressure acting on the respective pistons 52 is decreased, and therefore, the angle of inclination of the swash plate assembly is increased. Namely, the pin 34 connecting the rotor 28 and the swash plate assembly is moved slidably within the slot 32. The swash plate assembly is moved against the force of the spring 50. Therefore, the angle of inclination of the swash plate assembly is increased, and as a result, the length of the stroke of the respective pistons 52 is increased.
Conversely, when the pressure level in the crank chamber 20 rises, a backpressure acting on the respective piston 52 is increased, and therefore, the angle of inclination of the swash plate assembly is decreased. More specifically, the pin 34 connecting the rotor 28 and the swash plate assembly is moved slidably within the slot 32. As a result, the swash plate assembly yields to the force of the spring 50. Therefore, the inclination angle of the swash plate assembly is decreased, and as a result, the length of the stroke of the respective pistons 52 is reduced.
The sliding engagement between the annular plate 38 and the shoes 68 of the pistons 52 causes a lateral force to be exerted on the pistons 52. As the inclination angle of the swash plate assembly is caused to change, the depth the annular plate 38 is inserted into the shoe 68 changes, resulting in a change in the point where the lateral force is exerted on the piston 52. The lateral force tends to cause the piston 52 to rotate about its longitudinal axis. If permitted to rotate, the bridge portion 58 of the pistons 52 would contact the annular plate 38 of the swash plate assembly, thereby restricting rotation of the swash plate assembly and reducing the service life of the compressor 10.
As the piston 52 is rotated, one of the shoulder portions 70, 72 contacts one of the bearing surfaces 22. The contact between the shoulder portions 70, 72 with the bearing surfaces 22 restricts rotation of the piston 52, thereby avoiding contact between the bridge portion 58 of the piston 52 and the annular plate 38.
The recessed portions 24 of the crankcase 18 are curved to permit the outer surface of the pistons 52 to slide adjacent the inner wall of the crankcase 18 without contacting the inner wall of the crankcase 18, thus providing smoother operation of the compressor 10. The recessed portions 24 of the crankcase 18 in cooperation with the bearing surfaces 22 permit the anti-rotation structure 60 to be located radially inward of the outer surface of the pistons 52. Locating the anti-rotation structure 60 in this manner permits a reduction in the overall diameter of the crankcase 18.
By combining the bearing surfaces 22 and the recessed portions 24, material costs are reduced. Machining costs are also reduced. Machining of the bearing surfaces 22 is required due to the contact with the shoulder portions 70, 72. However, since there is no contact between the pistons 52 and the recessed portions 24, no machining of the recessed portions 24 is required.
From the foregoing description, one ordinarily skilled in the art can easily ascertain the essential characteristics of this invention and, without departing from the spirit and scope thereof, can make various changes and modifications to the invention to adapt it to various usages and conditions.

Claims (6)

What is claimed is:
1. A variable capacity swash plate type compressor comprising:
a cylinder block having a plurality of cylinders arranged radially and circumferentially therein;
a crankcase mounted adjacent said cylinder block and cooperating with said cylinder block to define a sealed crank chamber, said crankcase having a central axis and an inner wall with spaced apart longitudinally extending parallel bearing surfaces formed therein and extending parallel to said central axis of said crankcase, said bearing surfaces defining longitudinal recessed portions therebetween;
a drive shaft rotatably supported by said crankcase and said cylinder block in said crank chamber;
a swash plate slidably and rotatably disposed on said drive shaft;
a plurality of pistons reciprocatively disposed in each of said cylinders of said cylinder block, each said piston having a longitudinal axis and an outer surface;
means for achieving a hinged connection between said swash plate and each of said pistons so that when said drive shaft is rotated, each said piston reciprocates in a corresponding said cylinder; and
an anti-rotation structure disposed on each said piston to reciprocatively move within said crankcase, said anti-rotation structure having two shoulder portions extending radially outward from said longitudinal axis of each said piston to a point beyond said outer surface of each said piston adjacent said bearing surfaces of the inner wall of said crankcase, said shoulder portions of said anti-rotation structure permitting said outer surface of each said piston to reciprocatively move adjacent an associated one of said recessed portions of said inner wall of said crankcase while preventing rotation of said pistons in said cylinders.
2. The compressor defined in claim 1 wherein said bearing surfaces of said crankcase have an arcuate surface concentric with said central axis of said crankcase.
3. The compressor defined in claim 2 wherein said shoulder portions of said anti-rotation structure have an arcuate surface concentric with said central axis of said crankcase.
4. A variable capacity swash plate type compressor comprising:
a cylinder block;
a crankcase having a central axis and an inner wall with spaced apart longitudinally extending parallel bearing surfaces formed therein and extending parallel to said central axis of said crankcase and defining longitudinal recessed portions therebetween;
a drive shaft;
a swash plate;
a plurality of pistons, each said piston having a longitudinal axis and an outer surface and an anti-rotation structure disposed on each said piston to reciprocatively move within said crankcase, said anti-rotation structure having two shoulder portions extending radially outward from said longitudinal axis of each said piston to a point beyond said outer surface of each said piston to slide adjacent said bearing surfaces of said inner wall of said crankcase, and a outer surface spanning between said shoulder portions, wherein a mid-point of the outer surface is radially inbound of the outer diameter of said piston.
5. In a variable capacity swash plate type compressor as defined in claim 4 wherein said bearing surfaces of said crankcase have an arcuate surface concentric with said central axis of said crankcase.
6. In a variable capacity swash plate type compressor as defined in claim 5 wherein said shoulder portions of said anti-rotation structure have an arcuate surface concentric with said central axis of the crankcase.
US09/474,728 1999-12-29 1999-12-29 Variable displacement compressor having piston anti-rotation structure Expired - Lifetime US6367368B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US09/474,728 US6367368B1 (en) 1999-12-29 1999-12-29 Variable displacement compressor having piston anti-rotation structure
EP00309729A EP1113171A3 (en) 1999-12-29 2000-11-03 Variable displacement compressor having piston anti-rotation structure
JP2000402528A JP2001221156A (en) 1999-12-29 2000-12-28 Variable displacement compressor having piston rotation preventing structure
KR1020000085306A KR100717329B1 (en) 1999-12-29 2000-12-29 Variable displacement compressor having piston anti-rotation structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/474,728 US6367368B1 (en) 1999-12-29 1999-12-29 Variable displacement compressor having piston anti-rotation structure

Publications (1)

Publication Number Publication Date
US6367368B1 true US6367368B1 (en) 2002-04-09

Family

ID=23884718

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/474,728 Expired - Lifetime US6367368B1 (en) 1999-12-29 1999-12-29 Variable displacement compressor having piston anti-rotation structure

Country Status (4)

Country Link
US (1) US6367368B1 (en)
EP (1) EP1113171A3 (en)
JP (1) JP2001221156A (en)
KR (1) KR100717329B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6532860B2 (en) * 2000-05-24 2003-03-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Piston type compressor and inner mold for making the same
US6532655B1 (en) * 1999-03-20 2003-03-18 Halla Climate Control Corp. Method of manufacturing hollow piston for compressors
US20030140779A1 (en) * 2002-01-17 2003-07-31 Otfried Schwarzkopf Swash or wobble plate compressors
US11773837B1 (en) * 2022-06-03 2023-10-03 T/CCI Manufacturing, L.L.C. Compressor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003065222A (en) * 2001-08-30 2003-03-05 Sanden Corp Piston of swash plate type compressor
US6786704B2 (en) * 2001-11-02 2004-09-07 Denso Corporation Compressor with single shaft support

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06346844A (en) 1993-06-04 1994-12-20 Toyota Autom Loom Works Ltd Piston rotation regulating structure in swash plate type compressor
JPH08109874A (en) 1994-10-11 1996-04-30 Calsonic Corp Swash plate compressor
JPH09268975A (en) 1996-04-03 1997-10-14 Sanden Corp Piston rotational movement restricting structure for swash plate type compressor
JPH1082363A (en) 1996-07-15 1998-03-31 Toyota Autom Loom Works Ltd Single head piston of compressor
US6010313A (en) * 1996-12-09 2000-01-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Single-headed piston type compressor
US6220146B1 (en) * 1998-09-16 2001-04-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Single-headed-piston type refrigerant compressor with means for preventing rotation of the piston about its own axis within the cylinder bore

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0861237A (en) * 1994-08-23 1996-03-08 Sanden Corp Swash plate type compressor
EP0780572B1 (en) * 1995-11-24 2005-10-12 Calsonic Kansei Corporation Swash-plate type compressor
US5988041A (en) * 1996-07-15 1999-11-23 Kabushiki Kaisha Toyoda Jodoshokki Seiksakusho Piston for compressors
JP2947243B2 (en) * 1997-11-14 1999-09-13 株式会社豊田自動織機製作所 Piston structure in swash plate compressor
JPH11336658A (en) * 1998-05-28 1999-12-07 Toyota Autom Loom Works Ltd Swash plate compressor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06346844A (en) 1993-06-04 1994-12-20 Toyota Autom Loom Works Ltd Piston rotation regulating structure in swash plate type compressor
JPH08109874A (en) 1994-10-11 1996-04-30 Calsonic Corp Swash plate compressor
JPH09268975A (en) 1996-04-03 1997-10-14 Sanden Corp Piston rotational movement restricting structure for swash plate type compressor
JPH1082363A (en) 1996-07-15 1998-03-31 Toyota Autom Loom Works Ltd Single head piston of compressor
US6010313A (en) * 1996-12-09 2000-01-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Single-headed piston type compressor
US6220146B1 (en) * 1998-09-16 2001-04-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Single-headed-piston type refrigerant compressor with means for preventing rotation of the piston about its own axis within the cylinder bore

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6532655B1 (en) * 1999-03-20 2003-03-18 Halla Climate Control Corp. Method of manufacturing hollow piston for compressors
US6532860B2 (en) * 2000-05-24 2003-03-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Piston type compressor and inner mold for making the same
US20030140779A1 (en) * 2002-01-17 2003-07-31 Otfried Schwarzkopf Swash or wobble plate compressors
US7056100B2 (en) * 2002-01-17 2006-06-06 Zexel Valeo Climate Control Corporation Piston assembly for a compressor
US11773837B1 (en) * 2022-06-03 2023-10-03 T/CCI Manufacturing, L.L.C. Compressor

Also Published As

Publication number Publication date
KR100717329B1 (en) 2007-05-15
JP2001221156A (en) 2001-08-17
EP1113171A3 (en) 2003-11-26
EP1113171A2 (en) 2001-07-04
KR20010062839A (en) 2001-07-07

Similar Documents

Publication Publication Date Title
US5201261A (en) Piston coupling mechanism for a swash plate compressor
US6367368B1 (en) Variable displacement compressor having piston anti-rotation structure
JP3958420B2 (en) Shoe for swash plate compressor and piston joint for swash plate compressor
JP3373733B2 (en) Reciprocating piston type machine with wobble plate device
JP3964534B2 (en) piston
JPH09268975A (en) Piston rotational movement restricting structure for swash plate type compressor
EP0844389B1 (en) Swash plate compressor
US6293761B1 (en) Variable displacement swash plate type compressor having pivot pin
JP3260330B2 (en) Engagement structure between piston and shoe of swash plate compressor
EP0849470B1 (en) Swash-plate compressor capable of insuring sufficient lubrication between a piston and a shoe slidably interposed between the piston and a swash plate
US5720215A (en) Automotive air conditioning compressor piston with eccentric anti rotation pad
US20030025276A1 (en) Shaft sealing devices, compressors comprising the shaft sealing devices, and methods for sealing a rotational shaft
US6212995B1 (en) Variable-displacement inclined plate compressor
EP1693567A1 (en) Swash plate-type compressor
JPH04203279A (en) Slant plate type hydraulic rotary machine
KR100748140B1 (en) Structure for supporting thrust bearing for drive shaft supporter of variable displacement swash plate type compressor
JPH10176655A (en) Variable-displacement swash plate type compressor
US6390787B1 (en) Tapered swash plate
JP7005547B2 (en) Oblique shaft axial piston pump
KR100274970B1 (en) Variable displacement swash plate compressor
JP4344972B2 (en) Swash plate compressor
EP1211416B1 (en) Swash plate type compressor
KR100558702B1 (en) Wobble plate type compressor with variable displacement
US20030121413A1 (en) Piston anti-rotation mechanism for a swash plate compressor
JPH0518350A (en) Capacity control device of variable capacity type axial piston machine

Legal Events

Date Code Title Description
AS Assignment

Owner name: FORD GLOBAL TECHNOLOGIES, INC., MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GANSTER, PETER E.;AHN, HEW NAM;REEL/FRAME:010629/0177

Effective date: 20000303

AS Assignment

Owner name: VISTEON GLOBAL TECHNOLOGIES, INC., MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FORD MOTOR COMPANY;REEL/FRAME:010968/0220

Effective date: 20000615

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: FORD MOTOR COMPANY, MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FORD GLOBAL TECHNOLOGIES, INC. (NOW FORD GLOBAL TECHNOLOGIES, LLC);REEL/FRAME:018989/0402

Effective date: 20070309

AS Assignment

Owner name: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT

Free format text: SECURITY AGREEMENT;ASSIGNOR:VISTEON GLOBAL TECHNOLOGIES, INC.;REEL/FRAME:020497/0733

Effective date: 20060613

AS Assignment

Owner name: JPMORGAN CHASE BANK, TEXAS

Free format text: SECURITY INTEREST;ASSIGNOR:VISTEON GLOBAL TECHNOLOGIES, INC.;REEL/FRAME:022368/0001

Effective date: 20060814

Owner name: JPMORGAN CHASE BANK,TEXAS

Free format text: SECURITY INTEREST;ASSIGNOR:VISTEON GLOBAL TECHNOLOGIES, INC.;REEL/FRAME:022368/0001

Effective date: 20060814

AS Assignment

Owner name: WILMINGTON TRUST FSB, AS ADMINISTRATIVE AGENT, MIN

Free format text: ASSIGNMENT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:022575/0186

Effective date: 20090415

Owner name: WILMINGTON TRUST FSB, AS ADMINISTRATIVE AGENT,MINN

Free format text: ASSIGNMENT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:022575/0186

Effective date: 20090415

AS Assignment

Owner name: THE BANK OF NEW YORK MELLON, AS ADMINISTRATIVE AGE

Free format text: ASSIGNMENT OF PATENT SECURITY INTEREST;ASSIGNOR:JPMORGAN CHASE BANK, N.A., A NATIONAL BANKING ASSOCIATION;REEL/FRAME:022974/0057

Effective date: 20090715

FPAY Fee payment

Year of fee payment: 8

AS Assignment

Owner name: VISTEON GLOBAL TECHNOLOGIES, INC., MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS RECORDED AT REEL 022974 FRAME 0057;ASSIGNOR:THE BANK OF NEW YORK MELLON;REEL/FRAME:025095/0711

Effective date: 20101001

AS Assignment

Owner name: VISTEON GLOBAL TECHNOLOGIES, INC., MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS RECORDED AT REEL 022575 FRAME 0186;ASSIGNOR:WILMINGTON TRUST FSB, AS ADMINISTRATIVE AGENT;REEL/FRAME:025105/0201

Effective date: 20101001

AS Assignment

Owner name: MORGAN STANLEY SENIOR FUNDING, INC., AS AGENT, NEW

Free format text: SECURITY AGREEMENT (REVOLVER);ASSIGNORS:VISTEON CORPORATION;VC AVIATION SERVICES, LLC;VISTEON ELECTRONICS CORPORATION;AND OTHERS;REEL/FRAME:025238/0298

Effective date: 20101001

Owner name: MORGAN STANLEY SENIOR FUNDING, INC., AS AGENT, NEW

Free format text: SECURITY AGREEMENT;ASSIGNORS:VISTEON CORPORATION;VC AVIATION SERVICES, LLC;VISTEON ELECTRONICS CORPORATION;AND OTHERS;REEL/FRAME:025241/0317

Effective date: 20101007

AS Assignment

Owner name: VISTEON ELECTRONICS CORPORATION, MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

Owner name: VISTEON INTERNATIONAL BUSINESS DEVELOPMENT, INC.,

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

Owner name: VISTEON INTERNATIONAL HOLDINGS, INC., MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

Owner name: VISTEON SYSTEMS, LLC, MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

Owner name: VISTEON GLOBAL TECHNOLOGIES, INC., MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

Owner name: VISTEON GLOBAL TREASURY, INC., MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

Owner name: VC AVIATION SERVICES, LLC, MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

Owner name: VISTEON CORPORATION, MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

Owner name: VISTEON EUROPEAN HOLDING, INC., MICHIGAN

Free format text: RELEASE BY SECURED PARTY AGAINST SECURITY INTEREST IN PATENTS ON REEL 025241 FRAME 0317;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:026178/0412

Effective date: 20110406

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

AS Assignment

Owner name: HALLA VISTEON CLIMATE CONTROL CORPORATION, KOREA,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VISTEON GLOBAL TECHNOLOGIES, INC.;REEL/FRAME:030935/0969

Effective date: 20130726

FPAY Fee payment

Year of fee payment: 12

AS Assignment

Owner name: VISTEON EUROPEAN HOLDINGS, INC., MICHIGAN

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

Owner name: VC AVIATION SERVICES, LLC, MICHIGAN

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

Owner name: VISTEON SYSTEMS, LLC, MICHIGAN

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

Owner name: VISTEON CORPORATION, MICHIGAN

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

Owner name: VISTEON INTERNATIONAL HOLDINGS, INC., MICHIGAN

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

Owner name: VISTEON GLOBAL TREASURY, INC., MICHIGAN

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

Owner name: VISTEON INTERNATIONAL BUSINESS DEVELOPMENT, INC.,

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

Owner name: VISTEON GLOBAL TECHNOLOGIES, INC., MICHIGAN

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

Owner name: VISTEON ELECTRONICS CORPORATION, MICHIGAN

Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:033107/0717

Effective date: 20140409

AS Assignment

Owner name: HANON SYSTEMS, KOREA, REPUBLIC OF

Free format text: CHANGE OF NAME;ASSIGNOR:HALLA VISTEON CLIMATE CONTROL CORPORATION;REEL/FRAME:037007/0103

Effective date: 20150728